CVE-2024-34535 json
In Mastodon 4.1.6, API endpoint rate limiting can be bypassed by setting a crafted HTTP request header.
published 2024-10-03 2 y ago modified 2026-09-08 2 mo ago also BIT-mastodon-2024-34535 , EUVD-2024-35151 , GHSA-q3rg-xx5v-4mxh
- cvss
- 5.9
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.4%
- EPSS 0.4% chance of exploitation in 30 days, percentile 31%
- public exploits
- 0
- none known
Summary
In Mastodon 4.1.6, API endpoint rate limiting can be bypassed by setting a crafted HTTP request header.
Patch / fix
- bitnami mastodon 4.2.9
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 2 y ago
Exploit prediction
0.38% chance of exploitation in the next 30 days, higher than 31% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CISA ADP | 3.1 | 5.9 | CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:L/A:N |
| CNA | 3.1 | 5.9 | CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:L/A:N |
| OSV | 3.1 | 5.9 | CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:L/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| bitnami | mastodon | <4.2.9 |
4.2.9 |
Classification
- Weakness
-
- CWE-444 Inconsistent Interpretation of HTTP Requests
References
-
github.com
/mastodon/mastodon/tags
release-notes, article
-
github.com
/mastodon/mastodon/security/advisories/GHSA-q3rg-xx5v-4mxh
third-party-advisory, advisory
-
nvd.nist.gov
/vuln/detail/CVE-2024-34535
web
Sources
- CVE List CVE-2024-34535
- NVD CVE-2024-34535
- OSV BIT-mastodon-2024-34535
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